Low-noise guide rail
By designing protective components and ball screw drives on the guide rail, the problems of high noise and susceptibility to dust in linear guide rail slider pairs are solved, achieving low-noise, smooth and precise linear motion, and facilitating production and transportation.
Patent Information
- Application Number
- CN202520233020.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-13
- Publication Date
- 2025-12-26
- Estimated Expiration
- 2035-02-13
AI Technical Summary
The existing linear guide slider pair has high noise and is susceptible to dust due to some rolling elements not making close contact with the linear guide during movement, and its production is complicated.
The design incorporates protective components, forming a protective space through a left-side sealing plate, a right-side sealing plate, a front-side sealing plate, a rear-side sealing plate, and an upper-side sealing plate. This prevents dust and impurities from entering the contact area between the guide rail and the slider body, and ball screw drive is used to reduce friction.
It effectively reduces noise, improves the smoothness and accuracy of slider movement, extends service life, and simplifies the production and transportation process.
Smart Images
Figure CN223725171U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the field technology of guide rail especially is low noise guide rail. BACKGROUND
[0002] A kind of device that guide rail can bear, fixed, guide mobile device or equipment and reduce its friction, longitudinal groove or ridge on guide rail surface, for guiding, fixed machine parts, special equipment, instrument etc., guide rail is also called slide rail, linear guide rail, linear slide rail, for linear reciprocating motion occasion, with higher rated load than linear bearing, can bear certain torque, can realize high-precision linear motion under high load, for guiding, fixed machine parts, special equipment, instrument etc.
[0003] For the linear guide rail slider pair currently used, the existing linear guide rail slider pair is not in close contact with the linear guide rail in the moving process Part of the rolling body in the slider, resulting in a larger noise caused by the collision of the linear guide rail and the rolling body.
[0004] Later, a low-noise rolling guide rail pair appeared on the market, including a rolling guide rail, a slider body slidingly connected to the rolling guide rail, a returner arranged at both ends of the slider body, and a retainer arranged between the rolling guide rail and the slider body. The slider body, the rolling guide rail, the returner and the retainer form a circulating raceway, and the circulating raceway rolls with rollers; the rollers are composed of rolling bodies and isolation rings arranged at both ends of the rolling bodies, the isolation rings at the ends of the adjacent two rollers are in contact with each other, and the rolling bodies between the adjacent two rollers form a gap; during operation, the adjacent rollers are in contact through the isolation rings, thereby avoiding collision and friction between the rollers, reducing noise and improving service life; However, this kind of low-noise rolling guide rail pair has the following defects: for example, the isolation rings on the rolling bodies are increased by injection molding process, which makes the production of the rolling guide rail troublesome.
[0005] Secondly, the structure of the guide rail is exposed, which can cause foreign matter and dust to enter the inside, thereby affecting the smooth sliding of the guide rail.
[0006] Therefore, a new technical solution is needed to solve the above problems. INVENTION CONTENTS
[0007] Therefore, the utility model discloses a low-noise guide rail, which is designed by a protection assembly, the left sealing plate, the right sealing plate, the front sealing plate, the rear sealing plate and the upper sealing plate form a protection space, and the guide rail is arranged in the protection space. Thus, the sealing structure prevents dust and impurities from entering the contact part of the guide rail and the slider body, avoids the increase of friction and abnormal wear caused by impurity particles, and reduces noise.
[0008] To achieve the above object, the utility model discloses the following technical scheme:
[0009] A low noise guide rail, comprising:
[0010] A protection assembly, which comprises a left sealing plate, a right sealing plate, a front sealing plate, a rear sealing plate and an upper sealing plate connected with each other, wherein the left sealing plate, the right sealing plate, the front sealing plate, the rear sealing plate and the upper sealing plate form a protection space.
[0011] A guide rail, which is arranged in the protection space and extends in the front-rear direction.
[0012] A slider assembly, which is movably arranged in the front-rear direction of the guide rail.
[0013] A transmission assembly, which comprises a ball screw, a rear bearing and a coupling, wherein the ball screw extends in the front-rear direction, the ball screw is drivingly connected to the slider assembly and arranged in the protection space, the rear bearing is connected to the ball screw and mounted in the rear sealing plate, and the coupling is drivingly connected to the rear bearing.
[0014] A driving device, which is drivingly connected to the coupling.
[0015] As a preferred scheme, the slider assembly comprises a slider body and a slider seat for connecting with an external component, the ball screw is connected to the slider body, and the slider seat is arranged on the upper cover of the slider body and exposed outside the protection assembly.
[0016] As a preferred scheme, a front accommodating groove is arranged on the side of the front sealing plate facing the protection space, a rear accommodating groove is arranged on the side of the rear sealing plate facing the protection space, the rear accommodating groove penetrates through the front-rear ends of the rear sealing plate, the transmission assembly further comprises a front bearing, the front bearing is connected to the front end of the ball screw and arranged in the front accommodating groove, and the rear bearing is connected to the rear end of the ball screw and arranged in the rear accommodating groove.
[0017] As a preferred scheme, the upper sealing plate comprises a first sealing plate and a second sealing plate, the first sealing plate and the second sealing plate are arranged on the upper end faces of the left sealing plate and the right sealing plate, so that the first sealing plate and the second sealing plate are arranged on the upper end face of the protection space.
[0018] As a preferred scheme, the front-rear ends of the first sealing plate and the second sealing plate are fixed on the front sealing plate and the rear sealing plate by screws.
[0019] As a preferred scheme, the driving device further comprises a motor base fixed to the rear end of the rear sealing plate; the driving device is installed at the rear end of the motor base; and the motor base is provided with a mounting cavity, and the coupling is located in the mounting cavity.
[0020] As a preferred scheme, the outer side of the right sealing plate is provided with a mounting groove extending along the length direction of the right sealing plate; the low-noise guide rail further comprises a sensing assembly, the sensing assembly comprising a sensor mounting base, a photoelectric switch and a sensing sheet, the photoelectric switch being fixedly installed on the sensor mounting base, the sensor mounting base being installed on the mounting groove, and the sensing sheet being installed on the side edge of the slider base on the same side of the sensor mounting base.
[0021] As a preferred scheme, the front sealing plate and the rear sealing plate are both provided with a mounting piece on the side facing the protection space, and the left sealing plate and the right sealing plate are locked to the mounting piece by a locking piece.
[0022] As a preferred scheme, the bottom end surface of the guide rail is further provided with a buffer pad for reducing the noise generated by the friction of the slider assembly.
[0023] As a preferred scheme, the buffer pad is an elastic rubber pad or a polyurethane elastomer.
[0024] Compared with the prior art, the utility model has obvious advantages and beneficial effects, specifically speaking, according to the above technical scheme, mainly through the design of the protection assembly, the left sealing plate, the right sealing plate, the front sealing plate, the rear sealing plate and the upper sealing plate form a protection space; the guide rail is arranged in the protection space, thus, by using the sealing structure, dust and impurities are prevented from entering the contact position of the guide rail and the slider main body, the friction increase and abnormal wear caused by impurity particles are avoided, and the noise is reduced.
[0025] Secondly, the ball screw transmission mode reduces the friction force when the slider moves, reduces the mechanical noise, improves the fluency and accuracy of linear movement, and prolongs the service life.
[0026] Then, the left sealing plate, the right sealing plate, the front sealing plate, the rear sealing plate and the upper sealing plate are assembled, so that subsequent lubricating oil needs to be added, and the assembled design is convenient for transportation.
[0027] To make the structure features and functions of the utility model clearer, the utility model will be described in detail below in combination with the drawings and specific embodiments. BRIEF DESCRIPTION OF DRAWINGS
[0028] Fig. 1 is the perspective view of the embodiment of the utility model;
[0029] Fig. 2 is a top view of an embodiment of the present application;
[0030] Fig. 3 is a sectional view of an embodiment of the present application;
[0031] Fig. 4 is an exploded view of an embodiment of the present application.
[0032] Explanation of the drawing:
[0033] 10, protective assembly 11, left side sealing plate
[0034] 12, right side sealing plate 13, front side sealing plate
[0035] 14, rear side sealing plate 15, upper side sealing plate
[0036] 16, protective space 17, sensing assembly
[0037] 171, inductor mounting seat 172, photoelectric switch
[0038] 173, sensing sheet 18, mounting piece
[0039] 19, buffer pad
[0040] 121, mounting groove 131, front containing groove
[0041] 141, rear containing groove
[0042] 151, first sealing plate 152, second sealing plate
[0043] 20, guide rail
[0044] 30, sliding block assembly 31, sliding block main body
[0045] 32, sliding block seat
[0046] 40, transmission assembly 41, ball screw
[0047] 42, rear bearing 43, front bearing
[0048] 44, shaft coupling 45, screw nut
[0049] 50, driving device 51, motor seat. DETAILED DESCRIPTION
[0050] Please refer to Figs. 1 to 4 , which shows the specific structure of an embodiment of the present application.
[0051] In the description of the utility model, it is to be explained that, for the direction word, if there are terms "upper", "lower", "front", "rear", "left", "right" and the like indicate the direction and position relation as the direction or position relation shown based on the drawing or normal wearing use, only for the convenience of narrating the utility model and simplifying the description, and not indicate or imply that the device or element indicated must have a specific direction, construct and operate in a specific direction, and can not be understood as limiting the specific protection scope of the utility model.
[0052] A low noise guide rail 20, including protection assembly 10, guide rail 20, slider assembly 30, transmission assembly 40 and drive device 50.
[0053] The protection assembly 10 includes left side sealing plate 11, right side sealing plate 12, front side sealing plate 13, rear side sealing plate 14 and upper side sealing plate 15 are connected with each other, and the left side sealing plate 11, the right side sealing plate 12, the front side sealing plate 13, the rear side sealing plate 14 and the upper side sealing plate 15 are surrounded to form a protection space 16;
[0054] Preferably, one side of the front side sealing plate 13 towards the protection space 16 is provided with a front containing groove 131; one side of the rear side sealing plate 14 towards the protection space 16 is provided with a rear containing groove 141; the rear containing groove 141 penetrates through the front and rear ends of the rear side sealing plate 14;
[0055] Preferably, the upper side sealing plate 15 includes a first sealing plate 151 and a second sealing plate 152, the first sealing plate 151 and the second sealing plate 152 are arranged on the upper end surface of the left side sealing plate 11 and the right side sealing plate 12, so that the first sealing plate 151 and the second sealing plate 152 are arranged on the upper end surface of the protection space 16. Preferably, the front and rear ends of the first sealing plate 151 and the second sealing plate 152 are locked on the front side sealing plate 13 and the rear side sealing plate 14 by screws.
[0056] Preferably, the outer side of the right side sealing plate 12 is provided with a mounting groove 121, the mounting groove 121 is arranged along the length direction of the right side sealing plate 12; the low noise guide rail 20 further includes a sensing assembly 17, the sensing assembly 17 includes a sensor mounting seat 171, a photoelectric switch 172 and a sensing sheet 173, the photoelectric switch 172 is fixedly installed on the sensor mounting seat 171, the sensor mounting seat 171 is installed on the mounting groove 121, and the sensing sheet 173 is installed on the side edge of the slider seat 32 on the same side of the sensor mounting seat 171.
[0057] Preferably, the front side sealing plate 13 and the rear side sealing plate 14 are provided with mounting pieces 18 on one side towards the protection space 16, and the left side sealing plate 11 and the right side sealing plate 12 are locked on the mounting pieces 18 by locking pieces.
[0058] The guide rail 20 is arranged in the protection space 16, and the guide rail 20 is arranged in the front-rear direction; preferably, the bottom end surface of the guide rail 20 is further provided with a buffer pad 19 for reducing the friction noise of the sliding block assembly 30. Preferably, the buffer pad 19 is an elastic rubber pad or a polyurethane elastomer.
[0059] The sliding block assembly 30 is movably arranged in the front-rear direction of the guide rail 20; preferably, the sliding block assembly 30 comprises a sliding block body 31 and a sliding block seat 32 for connecting with an external component, and the ball screw 41 is connected to the sliding block body 31; the sliding block seat 32 is arranged on the sliding block body 31 and exposed outside the protection assembly 10.
[0060] The transmission assembly 40 comprises a ball screw 41, a rear bearing 42 and a shaft coupling 44, the ball screw 41 is arranged in the front-rear direction; the ball screw 41 is drivingly connected to the sliding assembly and arranged in the protection space 16; the rear bearing 42 is connected to the ball screw 41 and installed in the rear sealing plate 14; the shaft coupling 44 is drivingly connected to the rear bearing 42; the transmission assembly 40 further comprises a screw nut 45, the ball screw 41 is rotated by the driving device 50, the rotation of the ball screw 41 drives the screw nut 45 to move forward and backward, so as to convert the rotary motion into linear motion, and then the sliding block fixed on the screw nut 45 slides to drive the functional part to move linearly.
[0061] The transmission assembly 40 further comprises a front bearing 43, the front bearing 43 is connected to the front end of the ball screw 41 and arranged in the front containing groove 131; the rear bearing 42 is connected to the rear end of the ball screw 41 and arranged in the rear containing groove 141.
[0062] The driving device 50 is drivingly connected to the shaft coupling 44. Preferably, the driving device 50 further comprises a motor base 51, the motor base 51 is fixedly connected to the rear end of the rear sealing plate 14; the driving device 50 is installed at the rear end of the motor base 51; the motor base 51 is provided with a mounting cavity, and the shaft coupling 44 is located in the mounting cavity.
[0063] The design emphasis of the utility model lies in that it mainly passes through the design of the protection assembly, the left sealing plate, the right sealing plate, the front sealing plate, the rear sealing plate and the upper sealing plate surround to form a protection space; the guide rail is arranged in the protection space, so that the sealing structure is used to prevent dust and impurities from entering the contact part of the guide rail and the sliding block body, to avoid the increase of friction and abnormal wear caused by impurity particles, so as to reduce the noise;
[0064] Secondly, the ball screw transmission mode reduces the friction force when the sliding block moves, reduces the mechanical noise, improves the fluency and accuracy of the linear movement, and prolongs the service life.
[0065] Then, the left sealing plate, the right sealing plate, the front sealing plate, the rear sealing plate and the upper sealing plate are assembled, so that the subsequent lubricating oil needs to be added, and the assembled design is convenient for transportation.
[0066] The above is only a preferred embodiment of the present application, and does not limit the technical scope of the present application in any way. Therefore, any slight modification, equivalent change and modification of the above embodiment according to the technical essence of the present application still belongs to the scope of the technical scheme of the present application.
Claims
1. A low noise guide, characterized by: The utility model relates to a low noise guide rail, which comprises a protective assembly, a guide rail, a sliding block assembly, a transmission assembly and a driving device. The protective assembly comprises a left sealing plate, a right sealing plate, a front sealing plate, a rear sealing plate and an upper sealing plate which are connected with each other. The guide rail is arranged in the protective space and extends along the front-rear direction. The sliding block assembly is movably arranged along the front-rear direction of the guide rail. The transmission assembly comprises a ball screw, a rear bearing and a coupling. The ball screw extends along the front-rear direction and is connected with the sliding block assembly and arranged in the protective space.
2. A low noise guide rail according to claim 1, characterized in that: The rear bearing is connected with the ball screw and installed in the rear sealing plate.
3. A low noise guide rail according to claim 1, characterized in that: The coupling is connected with the rear bearing.
4. A low noise guide rail according to claim 1, characterized in that: The driving device is connected with the coupling.
5. A low noise guide rail according to claim 4, characterized in that: The sliding block assembly comprises a sliding block body and a sliding block seat for connecting with external components.
6. A low noise guide rail according to claim 1, characterized in that: The ball screw is connected with the sliding block body.
7. A low noise guide rail according to claim 2, characterized in that: The sliding block seat is arranged on the upper cover of the sliding block body and exposed outside the protective assembly.
8. A low noise guide rail according to claim 1, characterized in that: The front sealing plate is provided with a front accommodating groove on the side facing the protective space.
9. A low noise guide rail according to claim 1, characterized in that: The rear sealing plate is provided with a rear accommodating groove on the side facing the protective space.
10. A low noise guide rail according to claim 9, characterized in that: The rear accommodating groove penetrates through the front-rear ends of the rear sealing plate. The transmission assembly further comprises a front bearing. The front bearing is connected with the front end of the ball screw and arranged in the front accommodating groove. The rear bearing is connected with the rear end of the ball screw and arranged in the rear accommodating groove. The upper sealing plate comprises a first sealing plate and a second sealing plate. The first sealing plate and the second sealing plate are arranged on the upper end surfaces of the left sealing plate and the right sealing plate. The front-rear ends of the first sealing plate and the second sealing plate are fixed on the front sealing plate and the rear sealing plate by screws. The driving device further comprises a motor seat. The motor seat is fixedly connected with the rear end of the rear sealing plate. The driving device is installed at the rear end of the motor seat. The motor seat is provided with a mounting cavity. The coupling is arranged in the mounting cavity. The right sealing plate is provided with a mounting groove extending along the length direction of the right sealing plate. The low noise guide rail further comprises a sensing assembly. The sensing assembly comprises a sensor mounting seat, a photoelectric switch and a sensing sheet. The photoelectric switch is fixedly installed on the sensor mounting seat. The sensor mounting seat is installed on the mounting groove. The sensing sheet is installed on the side edge of the sliding block seat on the same side of the sensor mounting seat. The front sealing plate and the rear sealing plate are provided with mounting pieces on the sides facing the protective space. The left sealing plate and the right sealing plate are fixed on the mounting pieces by locking pieces. The bottom end surface of the guide rail is further provided with a buffer pad for reducing the friction noise of the sliding block assembly. The buffer pad is an elastic rubber pad or a polyurethane elastomer.